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Doppler ultrasonic velocity probe

a technology of ultrasonic velocity and probe, which is applied in the field of vibration monitoring systems, can solve the problems of eddy-current proximity displacement probe and spring-coil velocity transducer, affecting the effectiveness of vibration monitoring sensors for large rotating machinery, and affecting the accuracy of vibration monitoring, so as to eliminate any potential for transmission noise and eliminate background noise

Active Publication Date: 2019-03-26
LOVEJOY CONTROLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The system provides reliable and accurate vibration analysis data, reducing the risk of false alarms and equipment damage by eliminating noise and adapting to various surface conditions, ensuring continuous monitoring without disengagement, thus enhancing the protection and analysis of rotating equipment.

Problems solved by technology

Known vibration monitoring sensors for large rotating machinery, eddy-current proximity displacement probes and spring-coil velocity transducers, are hampered with intrinsic errors lessening their effectiveness in providing diagnostic warning or data for balancing and accurate rotor deflection monitoring to determine approaching internal contact between rotating and stationary elements thus protecting against rotor damage during start ups.
For example, eddy-current proximity displacement probes may suffer from electrical run-out, magnetic run-out, surface irregularity (dents, scratches, grooves) spiking, and ill-defined calibration.
Spring-coil velocity transducers suffer poor low speed outputs, mechanical resonance, and difficulty with coupling to a rotating shaft without use of a contacting shaft rider which itself is spiked by surface irregularities.

Method used

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  • Doppler ultrasonic velocity probe
  • Doppler ultrasonic velocity probe
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Embodiment Construction

[0017]Although the disclosure hereof is detailed and exact to enable those skilled in the art to practice the invention, the physical embodiments herein disclosed merely exemplify the invention which may be embodied in other specific structures. While the preferred embodiment has been described, the details may be changed without departing from the invention, which is defined by the claims.

[0018]With reference to FIGS. 1 and 2, a system 10 having a probe sensor 12 according to the present invention may he seen. As shown, the system 10 provides a device and method adapted to measure the vibrations of a test object 14, such as a machine shaft or other rotating object. The system 10 includes a probe sensor 12 having a housing 16, an extension tube support 18, and a probe analyzer circuit 20. As seen in FIG. 2, a probe sensor 12 for use with the present system. 10 preferably includes an ultrasonic speaker 22 and an ultrasonic microphone 24. The probe sensor 12 may further include a temp...

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Abstract

A system and method for measuring the vibrations of a test object, such as a machine shaft or other rotating equipment. The system includes a probe sensor fitting having an ultrasonic speaker and an ultrasonic microphone. The probe sensor fitting includes a temperature and relative humidity sensor. The system further includes a probe analyzer circuit with a microcomputer that generates vibration analysis data and probe health diagnostics.

Description

RELATED APPLICATIONS[0001]This application is a continuation-in-part of co-pending U.S. patent application Ser. No. 14 / 819,131, filed 5 Aug. 2015.BACKGROUND OF THE INVENTION[0002]The present invention is directed to vibration monitoring systems, particularly systems for use with large rotating machinery. Known vibration monitoring sensors for large rotating machinery, eddy-current proximity displacement probes and spring-coil velocity transducers, are hampered with intrinsic errors lessening their effectiveness in providing diagnostic warning or data for balancing and accurate rotor deflection monitoring to determine approaching internal contact between rotating and stationary elements thus protecting against rotor damage during start ups. For example, eddy-current proximity displacement probes may suffer from electrical run-out, magnetic run-out, surface irregularity (dents, scratches, grooves) spiking, and ill-defined calibration. Spring-coil velocity transducers suffer poor low s...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): G01H17/00G01S15/58
CPCG01S15/586G01H17/00G01H9/008G01S7/52006G01S7/521
Inventor LOVEJOY, KIM A.
Owner LOVEJOY CONTROLS
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